US20090243847A1 - Extension cord with environmental condition sensing ability - Google Patents

Extension cord with environmental condition sensing ability Download PDF

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Publication number
US20090243847A1
US20090243847A1 US12/413,624 US41362409A US2009243847A1 US 20090243847 A1 US20090243847 A1 US 20090243847A1 US 41362409 A US41362409 A US 41362409A US 2009243847 A1 US2009243847 A1 US 2009243847A1
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United States
Prior art keywords
environmental condition
extension cord
sensor unit
sensing ability
current control
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Granted
Application number
US12/413,624
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US8797174B2 (en
Inventor
Yu-Gang Chen
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Far East University
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Far East University
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Publication date
Priority to TW97111469A priority Critical patent/TWI382617B/en
Priority to TW97111469A priority
Priority to TW097111469 priority
Application filed by Far East University filed Critical Far East University
Assigned to FAR EAST UNIVERSITY reassignment FAR EAST UNIVERSITY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, YU-GANG
Publication of US20090243847A1 publication Critical patent/US20090243847A1/en
Publication of US8797174B2 publication Critical patent/US8797174B2/en
Application granted granted Critical
Application status is Active legal-status Critical
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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/665Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6683Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/665Structural association with built-in electrical component with built-in electronic circuit
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/003Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits the coupling part being secured only to wires or cables

Abstract

An extension cord with environmental condition sensing ability has a plug for connecting to a power source, and includes a main body, a sensor unit, and a current control unit. On the main body, there are provided a first socket group and a second socket group, which are electrically connected to the power source via the plug. The sensor unit is electrically connected to the second socket group for sensing an environmental condition and thereby generating a signal. The current control unit and the sensor unit together form an electric circuit, and the current control unit receives the signal generated by the sensor unit and turns on or cuts off electric current being supplied to the second socket group according to the received signal.

Description

    FIELD OF THE INVENTION
  • The present invention relates to an extension cord with environmental condition sensing ability, and more particularly to an extension cord that is able to sense an environmental condition to thereby turn on or cut off electric current being supplied thereto.
  • BACKGROUND OF THE INVENTION
  • There are a large number of various electric appliances available for use in people's daily life now. Since every one of these electric appliances has a plug for electrically connecting to a power source, the number of power receptacles available in a general house tends to be insufficient for these electric appliances to plug in. Therefore, one or more extension cords are frequently used to provide increased number of power receptacles.
  • There is developed a smart-type power control device, which is quite expensive and usually arranged in an advanced electric appliance or a computer. Moreover, the smart-type power control device and other peripheral electronic devices can not be synchronously controlled conveniently.
  • The conventional extension cords are very popular among people for using in daily life, but they only provide a power supply function and a basic switch function.
  • It is therefore tried by the inventor to develop an extension cord with environmental condition sensing ability to improve the smart-type power control device and the conventional extension cords.
  • SUMMARY OF THE INVENTION
  • A primary object of the present invention is to provide an extension cord with environmental condition sensing ability to overcome the problems in the conventional extension cords.
  • To achieve the above and other objects, the extension cord with environmental condition sensing ability according to the present invention has a plug for connecting to a power source, and includes a main body, a sensor unit, and a current control unit. On the main body, there are provided a first socket group and a second socket group, which are electrically connected to the power source via the plug. The sensor unit is electrically connected to the second socket group and adapted to sense an environmental condition to thereby generate a signal. The current control unit and the sensor unit together form an electric circuit, and the current control unit receives the signal generated by the sensor unit to thereby turn on or cut off electric current being supplied to the second socket group.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawing, wherein
  • FIG. 1 is a conceptual view of an extension cord with environmental condition sensing ability according to an embodiment of the present invention.
  • FIG. 2 is a conceptual view of an extension cord with environmental condition sensing ability according to electric circuit of the present invention.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • The present invention will now be described with some preferred embodiments thereof. For the purpose of easy to understand, elements that are the same in the preferred embodiments are denoted by the same reference numerals.
  • Please refer to FIG. 1 that is a conceptual view of an extension cord with environmental condition sensing ability according to an embodiment of the present invention. As shown, the extension cord of the present invention has a plug 14 for connecting to a power source and includes a main body 11, a sensor unit 12, and a current control unit 13. On the main body 11, there are provided a first socket group 111 and a second socket group 112. The first and the second socket group 111, 112 are electrically connected to the power source via the plug 14. The first and the second socket group 111, 112 each internally include a plurality of conducting terminals, which are electrically connected to the plug 14. The sensor unit 12 is electrically connected to the second socket group 112 and adapted to sense an environmental condition 121 and thereby generates a signal 122. The sensor unit 12 can include a light sensor, a supersonic wave sensor, and a temperature sensor that are elements with sensing ability. The environmental condition 121 can be any one of a light condition, a supersonic wave reflection condition, and a temperature condition. The sensor unit 12 can be wirelessly connected to the current control unit 13. Alternatively, the sensor unit 12 can be connected to the current control unit 13 in a wired manner. The sensor unit 12 can further include a wireless transmitter for transmitting a wireless signal to the current control unit 13, and the current control unit 13 can further include a wireless receiver for receiving the wireless signal from the sensor unit 12. The current control unit 13 and the sensor unit 12 together form an electric circuit, and the current control unit 13 can turn on or cut off electric current being supplied to the second socket group 112 according to the signal 122 received from the sensor unit 12. In the present invention, the current control unit 13 can be a switch circuit.
  • More specifically, the sensor unit 12 is electrically connected to the main body 11 of the extension cord in a wired or a wireless manner to locate outside the main body 11 of the extension cord for transmitting a signal to the current control unit 13. Alternatively, the sensor unit 12 can be provided inside the main body 11 of the extension cord to reduce an overall volume of the extension cord.
  • With the above arrangements, electronic devices that must be constantly supplied with electric power for synchronized control can be plugged in the first socket group 111, and electronic devices that require control through the sensor unit 12 can be plugged in the second socket group 112. The electronic devices can be any one of a computer screen, a fan, a louder speaker, a desk lamp, etc. The sensor unit 12 can detect whether a user is present before some electronic devices through light sensing and/or temperature sensing. When it is detected that the user is not present before the electronic devices, the sensor unit 12 can generate the signal 122 to the current control unit 13, so that the current control unit 13 receiving the signal 122 controls the second socket group 112 to stop supplying electric power. For example, when the sensor unit 12 detects a lowered temperature or re-detects light when a shadow disappears, the sensor unit 12 determines that the user has left his or her seat and thereby generates the signal 122 to control the current control unit 13 to cut off the electric power being supplied to the second socket group 112, so that electric current is no longer supplied to the electronic devices plugged in the second socket group 112 to achieve the purpose of electric energy saving.
  • Please refer to FIG. 2 that is a conceptual view of an extension cord with environmental condition sensing ability according to electric circuit of the present invention. As shown, the extension cord of the present invention has a plug for connecting to a power source and includes a main body 11, a sensor unit 12, and a current control unit 13. The sensor unit 12 can be wirelessly connected to the current control unit 13. Alternatively, the sensor unit 12 can be connected to the current control unit 13 in a wired manner. The sensor unit 12 can further include a wireless transmitter for transmitting a wireless signal to the current control unit 13, and the current control unit 13 can further include a wireless receiver for receiving the wireless signal from the sensor unit 12. The current control unit 13 and the sensor unit 12 together form an electric circuit, and the current control unit 13 can turn on or cut off electric current being supplied to the second socket group 112 according to the signal 122 received from the sensor unit 12. In the present invention, the current control unit 13 can be a switch circuit. Sensor unit 12 having at least one light-emitting diodes provided thereon, which indicate the on/off status of power 18 being electrically connected to the first socket group 111 and the second socket group 112. The sensor unit 12 also includes a sensor chip 15 for sensing the environmental condition.
  • The sensor unit 12 includes a control chip 16, which being electrically connected to the wireless transmitter 17 and the sensor chip 15. The control chip 16 to determine the values of the environmental condition, which is detected by the sensor unit 12 to turn off the power if necessary.
  • The present invention has been described with some preferred embodiments thereof and it is understood that many changes and modifications in the described embodiments can be carried out without departing from the scope and the spirit of the invention that is intended to be limited only by the appended claims.

Claims (13)

1. An extension cord with environmental condition sensing ability and having a plug for connecting to a power source, comprising:
a main body having a first socket group and a second socket group provided thereon, the first and the second socket group being electrically connected to the power source via the plug;
a sensor unit being electrically connected to the second socket group, and adapted to sense an environmental condition and thereby generating a signal; and
a current control unit, which and the sensor unit together forming an electric circuit; the current control unit receiving the signal generated by the sensor unit, and turning on or cutting off electric current being supplied to the second socket group according to the received signal.
2. The extension cord with environmental condition sensing ability as claimed in claim 1,
wherein the sensor unit is connected to the current control unit in a wired manner.
3. The extension cord with environmental condition sensing ability as claimed in claim 1,
wherein the sensor unit is connected to the current control unit in a wireless manner.
4. The extension cord with environmental condition sensing ability as claimed in claim 1,
wherein the first socket group and the second socket group internally include a plurality of conducting terminals.
5. The extension cord with environmental condition sensing ability as claimed in claim 1,
wherein the sensor unit includes a light sensor, a supersonic wave sensor, and a temperature sensor which are elements with sensing ability.
6. The extension cord with environmental condition sensing ability as claimed in claim 1,
wherein the environmental condition can be any one of a temperature condition, a supersonic wave reflection condition, and a light condition.
7. The extension cord with environmental condition sensing ability as claimed in claim 1,
wherein the current control unit is a switch circuit.
8. The extension cord with environmental condition sensing ability as claimed in claim 1,
wherein the sensor unit is connected to the main body of the extension cord in a wired manner to transmit the signal to the current control unit.
9. The extension cord with environmental condition sensing ability as claimed in claim 1,
wherein the sensor unit is located inside the main body of the extension cord.
10. The extension cord with environmental condition sensing ability as claimed in claim 1,
wherein the sensor unit is connected to the main body of the extension cord in a wireless manner to transmit the signal to the current control unit.
11. The extension cord with environmental condition sensing ability as claimed in claim 1,
wherein the sensor unit includes a wireless transmitter for transmitting a wireless signal to the current control unit.
12. The extension cord with environmental condition sensing ability as claimed in claim 11,
wherein the current control unit includes a wireless receiver for receiving the wireless signal from the sensor unit.
13. The extension cord with environmental condition sensing ability as claimed in claim 1,
wherein the sensor unit includes a sensor chip for sensing the environmental condition.
US12/413,624 2008-03-28 2009-03-30 Extension cord with environmental condition sensing ability Active 2030-05-11 US8797174B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
TW97111469A TWI382617B (en) 2008-03-28 2008-03-28 Power extension cable with induction function
TW97111469A 2008-03-28
TW097111469 2008-03-28

Publications (2)

Publication Number Publication Date
US20090243847A1 true US20090243847A1 (en) 2009-10-01
US8797174B2 US8797174B2 (en) 2014-08-05

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US12/413,624 Active 2030-05-11 US8797174B2 (en) 2008-03-28 2009-03-30 Extension cord with environmental condition sensing ability

Country Status (2)

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US (1) US8797174B2 (en)
TW (1) TWI382617B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110302433A1 (en) * 2010-06-04 2011-12-08 Prodigit Electronics Co., Ltd. Control circuit of power-saving socket
FR2989232A1 (en) * 2012-04-06 2013-10-11 Electricite De France Electrical outlet for domestic electrical installation for supplying electrical energy to e.g. TV, has electronic processing unit collecting data from current sensors, and electronic memory storing collected data
US9577389B2 (en) 2014-03-07 2017-02-21 International Safety Holdings, LLC Systems and methods for modular shock proof electrical outlets

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI407276B (en) 2010-12-28 2013-09-01 Ind Tech Res Inst Method and apparatus for monitoring and controlling household appliances standby state
TWI442651B (en) * 2011-12-02 2014-06-21
US9493083B1 (en) * 2015-06-22 2016-11-15 Delphi Technologies, Inc. Electrical plug adapter
CN105870985A (en) * 2015-12-08 2016-08-17 乐视移动智能信息技术(北京)有限公司 Terminal equipment and charging method therefor
CN107799998A (en) * 2017-10-13 2018-03-13 高海燕 A kind of socket with communication device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514729A (en) * 1982-08-16 1985-04-30 Szarka Jay R Environmental control system and method
US5708554A (en) * 1996-03-12 1998-01-13 Liner; Leonard Power outlet box with special protection logic
US20050007709A1 (en) * 2003-07-11 2005-01-13 Wright Wendell Lee Transient protection and current control of devices
US20070006603A1 (en) * 2005-07-11 2007-01-11 Allied Precision Industries, Inc. Systems and methods for a temperature-controlled electrical outlet
US20070038334A1 (en) * 2005-08-05 2007-02-15 Powertech Industrial Co., Ltd. Energy saving outlet and an energy saving method by using an outlet
US20070297112A1 (en) * 2006-06-23 2007-12-27 Ergylink Energy saver
US20080094210A1 (en) * 2006-10-17 2008-04-24 Massachusetts Institute Of Technology Platform for Ubiquitous Sensor Deployment in Occupational and Domestic Environments
US7961111B2 (en) * 2007-12-26 2011-06-14 Audiovox Corporation Home control protection system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM327585U (en) * 2007-09-13 2008-02-21 Chan-Mao Wang Energy-saving socket

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514729A (en) * 1982-08-16 1985-04-30 Szarka Jay R Environmental control system and method
US5708554A (en) * 1996-03-12 1998-01-13 Liner; Leonard Power outlet box with special protection logic
US20050007709A1 (en) * 2003-07-11 2005-01-13 Wright Wendell Lee Transient protection and current control of devices
US20070006603A1 (en) * 2005-07-11 2007-01-11 Allied Precision Industries, Inc. Systems and methods for a temperature-controlled electrical outlet
US20070038334A1 (en) * 2005-08-05 2007-02-15 Powertech Industrial Co., Ltd. Energy saving outlet and an energy saving method by using an outlet
US20070297112A1 (en) * 2006-06-23 2007-12-27 Ergylink Energy saver
US20080094210A1 (en) * 2006-10-17 2008-04-24 Massachusetts Institute Of Technology Platform for Ubiquitous Sensor Deployment in Occupational and Domestic Environments
US7961111B2 (en) * 2007-12-26 2011-06-14 Audiovox Corporation Home control protection system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110302433A1 (en) * 2010-06-04 2011-12-08 Prodigit Electronics Co., Ltd. Control circuit of power-saving socket
FR2989232A1 (en) * 2012-04-06 2013-10-11 Electricite De France Electrical outlet for domestic electrical installation for supplying electrical energy to e.g. TV, has electronic processing unit collecting data from current sensors, and electronic memory storing collected data
US9577389B2 (en) 2014-03-07 2017-02-21 International Safety Holdings, LLC Systems and methods for modular shock proof electrical outlets

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Publication number Publication date
TWI382617B (en) 2013-01-11
US8797174B2 (en) 2014-08-05
TW200941862A (en) 2009-10-01

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